No audio, but amplifier switch works on other speakers?

[eiger3970]

Hello,
I have an amplifier connected to a switch, sending audio to pair A speakers which work, however pair B outputs no audio?
I haven't yet tested the cables from the working amplifier switch, swapped around and things.

The speakers in question are:

• Studio acoustics
• SA500BA4” (102mm)
• Freq. Res: 100Hz - 20kHz
• Power Handling: 100 Watts
• Imp: 8 Ohm Car/8 Ohm Hi-Fi

Red connect button: +8 Ohms
Yellow connect button: +4 Ohms
Black connect button: -COMMON

Q1: I'm wondering if there's a test I can do, like a multimetre test, but how much power (amps, volts, watts) should the cables have?
Q2: Is there a general rule of ISO standard on which cable connects to the Red and Yellow connect buttons? E.g. the speaker cable is a pair with grey and grey with a black stripe. I connected the grey with a black stripe to the yellow connect button, as black is associated with ground and red is associated with power.

 

[wmgwizard]

You have both of your speaker leads going to +(positive) terminals in the picture.

Move the lead in the yellow connector(4ohm) to the black(common) terminal.

 

[Dswankey]

What's with all the dirt & gravel like substance? did you just get these?

 

[eiger3970]

Thank you, removed the grey with black stripe cable from the yellow connection and inserted into the black connection, however the issue remains.
I checked the switch by swapping the B speakers cable positive and negative, but no audio.
Is there a way to test the cables for voltage, as moving the wires into the working speakers is a major hassle.
Sorry, the old outdoor speakers had some wasp mud nests that had to be crushed.